Amino acid dipepetide frequency for Hymenobacter sp. BRD67

Apart from single amino acid frequencies one can also calculate so called amino acid dipeptide frequency.

There is 400 possibilites (441 if we consider Xaa as additional 21st amino acid representing all non-standard or unknown amino acids). Thus, if the dipeptides would be present randomly in proteins each amino acid dipeptide should be present with 0.25% frequency. As it is not the case in the nature, for better visablity all more than expected dipepetides are marked by red, and those which are underrepresented are marked by blue in the table.

All values are presented as per milles (‰), therefore need to be multiplied by 10-3.

For more information see sequence space article on Wikipedia.

AlaCysAspGluPheGlyHisIleLysLeuMetAsnProGlnArgSerThrValTrpTyrXaa
Ala
15.555AlaAla: 15.555 ± 0.169
0.911AlaCys: 0.911 ± 0.028
5.88AlaAsp: 5.88 ± 0.069
5.729AlaGlu: 5.729 ± 0.082
3.67AlaPhe: 3.67 ± 0.058
10.266AlaGly: 10.266 ± 0.117
2.238AlaHis: 2.238 ± 0.049
4.116AlaIle: 4.116 ± 0.067
3.305AlaLys: 3.305 ± 0.059
11.909AlaLeu: 11.909 ± 0.144
1.809AlaMet: 1.809 ± 0.044
3.408AlaAsn: 3.408 ± 0.061
5.976AlaPro: 5.976 ± 0.105
5.649AlaGln: 5.649 ± 0.078
6.621AlaArg: 6.621 ± 0.096
6.364AlaSer: 6.364 ± 0.093
7.745AlaThr: 7.745 ± 0.126
7.34AlaVal: 7.34 ± 0.1
1.396AlaTrp: 1.396 ± 0.037
3.345AlaTyr: 3.345 ± 0.066
0.0AlaXaa: 0.0 ± 0.0
Cys
0.753CysAla: 0.753 ± 0.027
0.185CysCys: 0.185 ± 0.013
0.328CysAsp: 0.328 ± 0.016
0.304CysGlu: 0.304 ± 0.018
0.325CysPhe: 0.325 ± 0.018
0.681CysGly: 0.681 ± 0.027
0.207CysHis: 0.207 ± 0.015
0.325CysIle: 0.325 ± 0.018
0.217CysLys: 0.217 ± 0.015
0.841CysLeu: 0.841 ± 0.027
0.127CysMet: 0.127 ± 0.009
0.223CysAsn: 0.223 ± 0.014
0.511CysPro: 0.511 ± 0.028
0.4CysGln: 0.4 ± 0.018
0.539CysArg: 0.539 ± 0.022
0.47CysSer: 0.47 ± 0.024
0.464CysThr: 0.464 ± 0.022
0.431CysVal: 0.431 ± 0.022
0.184CysTrp: 0.184 ± 0.013
0.263CysTyr: 0.263 ± 0.016
0.0CysXaa: 0.0 ± 0.0
Asp
4.842AspAla: 4.842 ± 0.071
0.324AspCys: 0.324 ± 0.016
2.085AspAsp: 2.085 ± 0.048
2.814AspGlu: 2.814 ± 0.054
2.502AspPhe: 2.502 ± 0.046
3.68AspGly: 3.68 ± 0.072
0.88AspHis: 0.88 ± 0.028
2.283AspIle: 2.283 ± 0.053
2.047AspLys: 2.047 ± 0.05
4.882AspLeu: 4.882 ± 0.07
0.808AspMet: 0.808 ± 0.029
1.843AspAsn: 1.843 ± 0.043
2.369AspPro: 2.369 ± 0.049
1.901AspGln: 1.901 ± 0.048
2.228AspArg: 2.228 ± 0.051
2.492AspSer: 2.492 ± 0.051
2.565AspThr: 2.565 ± 0.045
3.242AspVal: 3.242 ± 0.056
0.651AspTrp: 0.651 ± 0.028
2.141AspTyr: 2.141 ± 0.05
0.0AspXaa: 0.0 ± 0.0
Glu
5.724GluAla: 5.724 ± 0.083
0.256GluCys: 0.256 ± 0.015
1.786GluAsp: 1.786 ± 0.049
2.597GluGlu: 2.597 ± 0.06
1.88GluPhe: 1.88 ± 0.039
2.921GluGly: 2.921 ± 0.058
1.061GluHis: 1.061 ± 0.033
2.332GluIle: 2.332 ± 0.051
2.412GluLys: 2.412 ± 0.049
6.085GluLeu: 6.085 ± 0.08
1.097GluMet: 1.097 ± 0.034
1.747GluAsn: 1.747 ± 0.041
2.085GluPro: 2.085 ± 0.042
2.642GluGln: 2.642 ± 0.064
2.992GluArg: 2.992 ± 0.053
2.039GluSer: 2.039 ± 0.048
2.448GluThr: 2.448 ± 0.05
3.741GluVal: 3.741 ± 0.063
0.59GluTrp: 0.59 ± 0.025
1.468GluTyr: 1.468 ± 0.036
0.0GluXaa: 0.0 ± 0.0
Phe
3.684PheAla: 3.684 ± 0.052
0.347PheCys: 0.347 ± 0.019
2.293PheAsp: 2.293 ± 0.048
1.96PheGlu: 1.96 ± 0.047
1.728PhePhe: 1.728 ± 0.04
3.274PheGly: 3.274 ± 0.053
0.747PheHis: 0.747 ± 0.027
1.745PheIle: 1.745 ± 0.047
1.369PheLys: 1.369 ± 0.038
3.563PheLeu: 3.563 ± 0.061
0.715PheMet: 0.715 ± 0.025
1.619PheAsn: 1.619 ± 0.046
1.616PhePro: 1.616 ± 0.037
1.46PheGln: 1.46 ± 0.035
2.294PheArg: 2.294 ± 0.049
2.811PheSer: 2.811 ± 0.056
2.854PheThr: 2.854 ± 0.051
2.706PheVal: 2.706 ± 0.056
0.516PheTrp: 0.516 ± 0.022
1.521PheTyr: 1.521 ± 0.036
0.0PheXaa: 0.0 ± 0.0
Gly
7.13GlyAla: 7.13 ± 0.101
0.761GlyCys: 0.761 ± 0.031
3.086GlyAsp: 3.086 ± 0.064
3.434GlyGlu: 3.434 ± 0.054
3.175GlyPhe: 3.175 ± 0.059
6.314GlyGly: 6.314 ± 0.102
1.794GlyHis: 1.794 ± 0.041
3.702GlyIle: 3.702 ± 0.066
3.26GlyLys: 3.26 ± 0.053
8.55GlyLeu: 8.55 ± 0.09
1.415GlyMet: 1.415 ± 0.037
2.856GlyAsn: 2.856 ± 0.066
3.427GlyPro: 3.427 ± 0.056
4.406GlyGln: 4.406 ± 0.064
5.108GlyArg: 5.108 ± 0.073
5.215GlySer: 5.215 ± 0.086
5.617GlyThr: 5.617 ± 0.117
5.051GlyVal: 5.051 ± 0.079
1.145GlyTrp: 1.145 ± 0.033
3.073GlyTyr: 3.073 ± 0.052
0.0GlyXaa: 0.0 ± 0.0
His
1.868HisAla: 1.868 ± 0.044
0.218HisCys: 0.218 ± 0.014
1.111HisAsp: 1.111 ± 0.034
1.162HisGlu: 1.162 ± 0.031
1.033HisPhe: 1.033 ± 0.03
1.533HisGly: 1.533 ± 0.044
0.637HisHis: 0.637 ± 0.026
0.941HisIle: 0.941 ± 0.033
0.646HisLys: 0.646 ± 0.026
2.526HisLeu: 2.526 ± 0.051
0.341HisMet: 0.341 ± 0.017
0.746HisAsn: 0.746 ± 0.027
1.376HisPro: 1.376 ± 0.038
0.968HisGln: 0.968 ± 0.027
1.256HisArg: 1.256 ± 0.036
1.089HisSer: 1.089 ± 0.036
1.189HisThr: 1.189 ± 0.036
1.168HisVal: 1.168 ± 0.034
0.335HisTrp: 0.335 ± 0.016
0.956HisTyr: 0.956 ± 0.031
0.0HisXaa: 0.0 ± 0.0
Ile
4.138IleAla: 4.138 ± 0.069
0.39IleCys: 0.39 ± 0.019
2.287IleAsp: 2.287 ± 0.043
2.236IleGlu: 2.236 ± 0.052
1.65IlePhe: 1.65 ± 0.044
3.453IleGly: 3.453 ± 0.059
0.752IleHis: 0.752 ± 0.027
2.192IleIle: 2.192 ± 0.048
1.818IleLys: 1.818 ± 0.043
3.62IleLeu: 3.62 ± 0.067
0.714IleMet: 0.714 ± 0.026
1.728IleAsn: 1.728 ± 0.045
1.999IlePro: 1.999 ± 0.05
1.608IleGln: 1.608 ± 0.034
2.443IleArg: 2.443 ± 0.05
2.831IleSer: 2.831 ± 0.055
3.004IleThr: 3.004 ± 0.057
2.758IleVal: 2.758 ± 0.059
0.462IleTrp: 0.462 ± 0.022
1.334IleTyr: 1.334 ± 0.043
0.0IleXaa: 0.0 ± 0.0
Lys
3.838LysAla: 3.838 ± 0.074
0.167LysCys: 0.167 ± 0.012
1.794LysAsp: 1.794 ± 0.051
1.892LysGlu: 1.892 ± 0.049
1.283LysPhe: 1.283 ± 0.036
2.562LysGly: 2.562 ± 0.052
0.717LysHis: 0.717 ± 0.029
1.84LysIle: 1.84 ± 0.047
2.079LysLys: 2.079 ± 0.054
3.965LysLeu: 3.965 ± 0.055
0.976LysMet: 0.976 ± 0.032
1.588LysAsn: 1.588 ± 0.043
2.025LysPro: 2.025 ± 0.052
1.687LysGln: 1.687 ± 0.046
1.893LysArg: 1.893 ± 0.046
2.004LysSer: 2.004 ± 0.045
2.275LysThr: 2.275 ± 0.049
2.525LysVal: 2.525 ± 0.055
0.397LysTrp: 0.397 ± 0.02
1.33LysTyr: 1.33 ± 0.035
0.0LysXaa: 0.0 ± 0.0
Leu
13.904LeuAla: 13.904 ± 0.154
0.801LeuCys: 0.801 ± 0.031
5.431LeuAsp: 5.431 ± 0.077
4.527LeuGlu: 4.527 ± 0.071
3.779LeuPhe: 3.779 ± 0.062
8.4LeuGly: 8.4 ± 0.11
2.593LeuHis: 2.593 ± 0.058
3.809LeuIle: 3.809 ± 0.064
3.812LeuLys: 3.812 ± 0.069
14.001LeuLeu: 14.001 ± 0.186
1.714LeuMet: 1.714 ± 0.043
4.052LeuAsn: 4.052 ± 0.064
7.122LeuPro: 7.122 ± 0.095
3.975LeuGln: 3.975 ± 0.054
7.942LeuArg: 7.942 ± 0.1
6.588LeuSer: 6.588 ± 0.077
7.565LeuThr: 7.565 ± 0.096
7.605LeuVal: 7.605 ± 0.103
1.086LeuTrp: 1.086 ± 0.035
3.104LeuTyr: 3.104 ± 0.056
0.0LeuXaa: 0.0 ± 0.0
Met
1.827MetAla: 1.827 ± 0.04
0.111MetCys: 0.111 ± 0.01
0.655MetAsp: 0.655 ± 0.026
0.777MetGlu: 0.777 ± 0.027
0.492MetPhe: 0.492 ± 0.021
1.211MetGly: 1.211 ± 0.038
0.389MetHis: 0.389 ± 0.018
0.549MetIle: 0.549 ± 0.022
0.994MetLys: 0.994 ± 0.028
2.017MetLeu: 2.017 ± 0.044
0.388MetMet: 0.388 ± 0.018
0.683MetAsn: 0.683 ± 0.026
1.185MetPro: 1.185 ± 0.036
0.987MetGln: 0.987 ± 0.031
1.216MetArg: 1.216 ± 0.033
1.18MetSer: 1.18 ± 0.03
1.063MetThr: 1.063 ± 0.026
1.097MetVal: 1.097 ± 0.035
0.161MetTrp: 0.161 ± 0.012
0.406MetTyr: 0.406 ± 0.02
0.0MetXaa: 0.0 ± 0.0
Asn
3.271AsnAla: 3.271 ± 0.063
0.267AsnCys: 0.267 ± 0.019
1.603AsnAsp: 1.603 ± 0.037
1.578AsnGlu: 1.578 ± 0.038
1.551AsnPhe: 1.551 ± 0.041
3.178AsnGly: 3.178 ± 0.076
0.626AsnHis: 0.626 ± 0.025
1.722AsnIle: 1.722 ± 0.044
1.37AsnLys: 1.37 ± 0.038
3.699AsnLeu: 3.699 ± 0.07
0.644AsnMet: 0.644 ± 0.021
1.67AsnAsn: 1.67 ± 0.057
2.469AsnPro: 2.469 ± 0.055
1.652AsnGln: 1.652 ± 0.04
1.855AsnArg: 1.855 ± 0.044
2.17AsnSer: 2.17 ± 0.053
2.416AsnThr: 2.416 ± 0.068
2.395AsnVal: 2.395 ± 0.06
0.518AsnTrp: 0.518 ± 0.021
1.484AsnTyr: 1.484 ± 0.038
0.0AsnXaa: 0.0 ± 0.0
Pro
8.903ProAla: 8.903 ± 0.112
0.33ProCys: 0.33 ± 0.017
3.099ProAsp: 3.099 ± 0.064
3.029ProGlu: 3.029 ± 0.055
1.818ProPhe: 1.818 ± 0.04
4.848ProGly: 4.848 ± 0.064
1.066ProHis: 1.066 ± 0.032
1.89ProIle: 1.89 ± 0.044
1.662ProLys: 1.662 ± 0.05
5.392ProLeu: 5.392 ± 0.083
0.812ProMet: 0.812 ± 0.025
1.917ProAsn: 1.917 ± 0.045
2.457ProPro: 2.457 ± 0.059
1.989ProGln: 1.989 ± 0.044
2.736ProArg: 2.736 ± 0.053
2.716ProSer: 2.716 ± 0.049
3.981ProThr: 3.981 ± 0.076
4.327ProVal: 4.327 ± 0.065
0.613ProTrp: 0.613 ± 0.022
1.656ProTyr: 1.656 ± 0.041
0.0ProXaa: 0.0 ± 0.0
Gln
5.824GlnAla: 5.824 ± 0.081
0.251GlnCys: 0.251 ± 0.015
1.733GlnAsp: 1.733 ± 0.042
2.101GlnGlu: 2.101 ± 0.048
1.583GlnPhe: 1.583 ± 0.039
3.15GlnGly: 3.15 ± 0.056
1.284GlnHis: 1.284 ± 0.035
1.524GlnIle: 1.524 ± 0.04
1.631GlnLys: 1.631 ± 0.045
6.217GlnLeu: 6.217 ± 0.092
0.83GlnMet: 0.83 ± 0.03
1.415GlnAsn: 1.415 ± 0.043
3.144GlnPro: 3.144 ± 0.065
3.164GlnGln: 3.164 ± 0.073
3.258GlnArg: 3.258 ± 0.057
1.983GlnSer: 1.983 ± 0.048
2.526GlnThr: 2.526 ± 0.049
3.603GlnVal: 3.603 ± 0.056
0.547GlnTrp: 0.547 ± 0.023
1.452GlnTyr: 1.452 ± 0.033
0.0GlnXaa: 0.0 ± 0.0
Arg
5.875ArgAla: 5.875 ± 0.086
0.512ArgCys: 0.512 ± 0.022
2.498ArgAsp: 2.498 ± 0.05
3.162ArgGlu: 3.162 ± 0.058
2.501ArgPhe: 2.501 ± 0.047
3.5ArgGly: 3.5 ± 0.06
1.534ArgHis: 1.534 ± 0.046
2.637ArgIle: 2.637 ± 0.049
2.055ArgLys: 2.055 ± 0.043
7.721ArgLeu: 7.721 ± 0.094
1.178ArgMet: 1.178 ± 0.033
1.935ArgAsn: 1.935 ± 0.043
3.913ArgPro: 3.913 ± 0.07
3.841ArgGln: 3.841 ± 0.068
4.613ArgArg: 4.613 ± 0.081
2.717ArgSer: 2.717 ± 0.049
3.362ArgThr: 3.362 ± 0.062
4.053ArgVal: 4.053 ± 0.069
0.957ArgTrp: 0.957 ± 0.035
2.486ArgTyr: 2.486 ± 0.047
0.0ArgXaa: 0.0 ± 0.0
Ser
5.872SerAla: 5.872 ± 0.082
0.562SerCys: 0.562 ± 0.022
2.334SerAsp: 2.334 ± 0.041
2.285SerGlu: 2.285 ± 0.042
2.662SerPhe: 2.662 ± 0.047
5.199SerGly: 5.199 ± 0.087
1.068SerHis: 1.068 ± 0.033
2.512SerIle: 2.512 ± 0.05
1.928SerLys: 1.928 ± 0.049
6.34SerLeu: 6.34 ± 0.082
1.008SerMet: 1.008 ± 0.031
2.05SerAsn: 2.05 ± 0.055
3.279SerPro: 3.279 ± 0.062
2.443SerGln: 2.443 ± 0.045
3.205SerArg: 3.205 ± 0.053
3.799SerSer: 3.799 ± 0.072
3.974SerThr: 3.974 ± 0.083
3.763SerVal: 3.763 ± 0.066
0.803SerTrp: 0.803 ± 0.03
2.294SerTyr: 2.294 ± 0.051
0.0SerXaa: 0.0 ± 0.0
Thr
7.379ThrAla: 7.379 ± 0.113
0.432ThrCys: 0.432 ± 0.021
3.222ThrAsp: 3.222 ± 0.06
2.718ThrGlu: 2.718 ± 0.046
2.466ThrPhe: 2.466 ± 0.049
5.817ThrGly: 5.817 ± 0.098
1.166ThrHis: 1.166 ± 0.033
2.925ThrIle: 2.925 ± 0.054
2.029ThrLys: 2.029 ± 0.042
6.93ThrLeu: 6.93 ± 0.099
0.947ThrMet: 0.947 ± 0.034
2.307ThrAsn: 2.307 ± 0.055
3.992ThrPro: 3.992 ± 0.057
2.528ThrGln: 2.528 ± 0.052
3.209ThrArg: 3.209 ± 0.053
4.004ThrSer: 4.004 ± 0.084
5.049ThrThr: 5.049 ± 0.114
4.71ThrVal: 4.71 ± 0.101
0.779ThrTrp: 0.779 ± 0.032
2.391ThrTyr: 2.391 ± 0.057
0.0ThrXaa: 0.0 ± 0.0
Val
8.365ValAla: 8.365 ± 0.102
0.526ValCys: 0.526 ± 0.022
2.884ValAsp: 2.884 ± 0.061
3.358ValGlu: 3.358 ± 0.06
2.666ValPhe: 2.666 ± 0.054
5.092ValGly: 5.092 ± 0.073
1.136ValHis: 1.136 ± 0.035
2.794ValIle: 2.794 ± 0.059
2.559ValLys: 2.559 ± 0.049
7.951ValLeu: 7.951 ± 0.105
1.154ValMet: 1.154 ± 0.032
2.459ValAsn: 2.459 ± 0.059
3.931ValPro: 3.931 ± 0.072
3.074ValGln: 3.074 ± 0.05
4.559ValArg: 4.559 ± 0.073
4.199ValSer: 4.199 ± 0.072
4.082ValThr: 4.082 ± 0.086
5.64ValVal: 5.64 ± 0.083
0.707ValTrp: 0.707 ± 0.026
2.119ValTyr: 2.119 ± 0.043
0.0ValXaa: 0.0 ± 0.0
Trp
1.188TrpAla: 1.188 ± 0.039
0.116TrpCys: 0.116 ± 0.011
0.508TrpAsp: 0.508 ± 0.025
0.572TrpGlu: 0.572 ± 0.025
0.461TrpPhe: 0.461 ± 0.021
0.791TrpGly: 0.791 ± 0.03
0.38TrpHis: 0.38 ± 0.019
0.37TrpIle: 0.37 ± 0.019
0.421TrpLys: 0.421 ± 0.019
1.833TrpLeu: 1.833 ± 0.05
0.259TrpMet: 0.259 ± 0.015
0.435TrpAsn: 0.435 ± 0.021
0.684TrpPro: 0.684 ± 0.026
0.966TrpGln: 0.966 ± 0.031
0.868TrpArg: 0.868 ± 0.032
0.602TrpSer: 0.602 ± 0.022
0.644TrpThr: 0.644 ± 0.025
0.865TrpVal: 0.865 ± 0.027
0.228TrpTrp: 0.228 ± 0.015
0.361TrpTyr: 0.361 ± 0.019
0.0TrpXaa: 0.0 ± 0.0
Tyr
3.291TyrAla: 3.291 ± 0.054
0.311TyrCys: 0.311 ± 0.016
1.961TyrAsp: 1.961 ± 0.044
1.665TyrGlu: 1.665 ± 0.037
1.596TyrPhe: 1.596 ± 0.041
2.648TyrGly: 2.648 ± 0.053
0.826TyrHis: 0.826 ± 0.029
1.21TyrIle: 1.21 ± 0.034
1.223TyrLys: 1.223 ± 0.036
3.769TyrLeu: 3.769 ± 0.054
0.453TyrMet: 0.453 ± 0.022
1.46TyrAsn: 1.46 ± 0.043
1.68TyrPro: 1.68 ± 0.043
1.879TyrGln: 1.879 ± 0.049
2.214TyrArg: 2.214 ± 0.041
2.11TyrSer: 2.11 ± 0.048
2.179TyrThr: 2.179 ± 0.052
2.236TyrVal: 2.236 ± 0.045
0.475TyrTrp: 0.475 ± 0.023
1.587TyrTyr: 1.587 ± 0.041
0.0TyrXaa: 0.0 ± 0.0
Xaa
0.0XaaAla: 0.0 ± 0.0
0.0XaaCys: 0.0 ± 0.0
0.0XaaAsp: 0.0 ± 0.0
0.0XaaGlu: 0.0 ± 0.0
0.0XaaPhe: 0.0 ± 0.0
0.0XaaGly: 0.0 ± 0.0
0.0XaaHis: 0.0 ± 0.0
0.0XaaIle: 0.0 ± 0.0
0.0XaaLys: 0.0 ± 0.0
0.0XaaLeu: 0.0 ± 0.0
0.0XaaMet: 0.0 ± 0.0
0.0XaaAsn: 0.0 ± 0.0
0.0XaaPro: 0.0 ± 0.0
0.0XaaGln: 0.0 ± 0.0
0.0XaaArg: 0.0 ± 0.0
0.0XaaSer: 0.0 ± 0.0
0.0XaaThr: 0.0 ± 0.0
0.0XaaVal: 0.0 ± 0.0
0.0XaaTrp: 0.0 ± 0.0
0.0XaaTyr: 0.0 ± 0.0
0.0XaaXaa: 0.0 ± 0.0
Statistics based on 3905 proteins (1139927 amino acids)

Note: The error has been estimated with the bootstraping (x100) at the protein level

Above dipeptide statistics (among other stats for this proteome) you can download from this CSV file
See this proteome in: uniprot_link
Proteome-pI is available under Creative Commons Attribution-NoDerivs license, for more details see here

Reference: Kozlowski LP. Proteome-pI 2.0: Proteome Isoelectric Point Database Update. Nucleic Acids Res. 2021, doi: 10.1093/nar/gkab944 Contact: Lukasz P. Kozlowski